Lookproof alternatives
15 x402 developer tool APIs compared with Lookproof: the price per call read from each 402, x402 grade, uptime and median response time from our own daily unpaid checks.
Lookproof for reference
Mail, DNS and web checks for developers and agents: SPF, DMARC, DKIM, MTA-STS, DNSSEC, TLS certificates, security headers and RDAP, with findings that explain…
Up · x402 grade B (85/100) · 100% up (14/14 checks) · $0.03 per call in its 402 · 643 ms median
15 Lookproof alternatives compared
Ranked by x402 grade, then uptime from our daily checks, then x402 score and response time. Price is shown but never used for ranking; “lower” or “higher” compares with Lookproof’s $0.03 per call. Paid placement never changes the order.
Lower price per call ($0.002 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.002 (lower)
- Response
- 252 ms
Lower price per call ($0.002 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.002 (lower)
- Response
- 259 ms
Higher x402 grade (A vs B); faster median response (369 ms vs 643 ms)
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $3.00 (higher)
- Response
- 369 ms
Higher x402 grade (A vs B); faster median response (391 ms vs 643 ms)
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $2.00 (higher)
- Response
- 391 ms
Lower price per call ($0.002 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.002 (lower)
- Response
- 392 ms
Lower price per call ($0.01 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (100/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.01 (lower)
- Response
- 530 ms
Lower price per call ($0.001 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (95/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.001 (lower)
- Response
- 172 ms
Lower price per call ($0.002 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (95/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.002 (lower)
- Response
- 453 ms
Lower price per call ($0.007 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (95/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.007 (lower)
- Response
- 563 ms
Lower price per call ($0.002 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (90/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.002 (lower)
- Response
- 268 ms
Higher x402 grade (A vs B); faster median response (346 ms vs 643 ms)
- x402 grade
- A (90/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.10 (higher)
- Response
- 346 ms
Lower price per call ($0.01 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (90/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.01 (lower)
- Response
- 438 ms
Lower price per call ($0.005 vs $0.03); higher x402 grade (A vs B)
- x402 grade
- A (90/100)
- Uptime (checks so far)
- 100% (9/9)
- Price in 402
- $0.005 (lower)
- Response
- 210 ms
Lower price per call ($0.005 vs $0.03); faster median response (224 ms vs 643 ms)
- x402 grade
- B (85/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.005 (lower)
- Response
- 224 ms
Lower price per call ($0.001 vs $0.03); faster median response (513 ms vs 643 ms)
- x402 grade
- B (85/100)
- Uptime (checks so far)
- 100% (14/14)
- Price in 402
- $0.001 (lower)
- Response
- 513 ms
Prices are what each endpoint’s 402 asked for at our last check, for the one endpoint we check. Each API does its own job and other routes may be priced differently, so a lower price is not like-for-like. Check the provider before paying.
Lookproof alternatives FAQ
What are the best alternatives to Lookproof?
By our ranking (x402 grade, then uptime from our daily checks, then x402 score and response time): Toolrail, NetIntel, corpusAI. Each does its own job, so check that its endpoints cover what you use Lookproof for.
Is there a cheaper alternative to Lookproof?
12 of the 15 alternatives asked for less per call than Lookproof's $0.03 in their 402 at our last check: Toolrail ($0.002), NetIntel ($0.002), ExecBox ($0.002), FluidRack ($0.01), NodeFlare ($0.001) and others. Prices are for the endpoint we check; other routes and what you get per call differ, so check the provider before paying.
How are these alternatives ranked?
Same category, ranked by x402 grade, then uptime from our own daily unpaid checks, then x402 score, valid x402 share and median response time. Price is shown but never used for ranking, and paid placement never changes the order.
Lookproof review·Lookproof status·developer tool APIs status·Best developer tool APIs·Uptime leaderboard
Data as of Nov 10, 2026, 7:17 AM ET. One unpaid request per listing per day to its example endpoint; up means any answer below HTTP 500 except 404/410 within 8 seconds. The x402 grade comes from x402fix, our free unpaid check of each 402 payment request; it rates the payment request, not uptime, and is not an endorsement. Listings with no check yet, no price read from a 402, or a check we are fixing are left out.
Building an x402 API? Free x402 course + launch help inside
Join the community